Initial commit: Family Planner application
Complete family planning application with: - React frontend with TypeScript - Node.js/Express backend with TypeScript - Python ingestion service for document processing - Planning ingestion service with LLM integration - Shared UI components and type definitions - OAuth integration for calendar synchronization - Comprehensive documentation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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# Family Planner - Code Improvements Summary
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This document summarizes the significant improvements made to the Family Planner codebase.
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## Overview
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Date: 2025-10-12
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Improvements Status: **COMPLETED**
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## Critical Security Fixes ✅
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### 1. Secrets Management
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- **BEFORE**: API keys stored in plain text JSON files (`backend/src/data/secrets.json`)
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- **AFTER**: Secrets moved to environment variables
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- **Files Changed**:
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- `backend/src/services/secret-store.ts` - Now reads from env vars only
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- `backend/src/config/env.ts` - Enhanced configuration with validation
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- `backend/.env.example` - Template for environment variables
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- `.gitignore` - Updated to exclude all secret files
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**Action Required**: Set the following environment variables:
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```bash
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OPENAI_API_KEY=your_key_here
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OPENAI_MODEL=gpt-4
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```
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### 2. Rate Limiting
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- **ADDED**: Express rate limiting middleware
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- **Configuration**: 100 requests per 15 minutes per IP (configurable)
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- **Files Added**:
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- `backend/src/middleware/security.ts` - Rate limiting, CORS validation
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- Environment variables: `RATE_LIMIT_WINDOW_MS`, `RATE_LIMIT_MAX_REQUESTS`
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### 3. Security Headers
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- **ADDED**: Helmet.js for security headers
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- **Features**: CSP, XSS protection, clickjacking protection
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- **File**: `backend/src/middleware/security.ts`
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### 4. CORS Validation
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- **BEFORE**: Single origin string, no validation
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- **AFTER**: Multiple origins support with validation callback
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- **Configuration**: Comma-separated list in `CORS_ORIGIN` env var
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### 5. File Upload Security
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- **ADDED**: Comprehensive file validation
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- **Features**:
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- MIME type validation
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- File extension validation
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- MIME/extension mismatch detection
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- Filename sanitization
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- Configurable file size limits
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- **File**: `backend/src/middleware/file-upload.ts`
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## TypeScript Type Safety ✅
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### Eliminated All `any` Types
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- **BEFORE**: 15+ instances of `any` type usage
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- **AFTER**: Proper TypeScript types throughout
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**Files Fixed**:
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1. `frontend/src/services/api-client.ts`
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- Created `frontend/src/types/api.ts` with proper response types
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- All API functions now have proper return types
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2. `frontend/src/components/ToastProvider.tsx`
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- Created `frontend/src/types/global.d.ts` for window extensions
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- Removed `window as any` casts
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3. `backend/src/routes/uploads.ts`
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- Added proper typing for ingestion activities
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- Typed file upload responses
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## Error Handling ✅
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### 1. Backend Error Handling
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- **ADDED**: Centralized error handling middleware
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- **Features**:
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- Consistent error response format
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- Zod validation error handling
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- Multer file upload error handling
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- Production-safe error messages
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- Request logging with context
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- **File**: `backend/src/middleware/error-handler.ts`
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### 2. Frontend Error Boundary
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- **ADDED**: React Error Boundary component
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- **Features**:
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- Catches React component errors
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- Shows user-friendly error UI
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- Detailed error info in development
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- Reload button for recovery
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- Custom fallback support
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- **Files**:
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- `frontend/src/components/ErrorBoundary.tsx` - Component
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- `frontend/src/main.tsx` - Integration
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## Logging Infrastructure ✅
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### Winston Logger
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- **ADDED**: Structured logging with Winston
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- **Features**:
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- Colorized console output in development
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- JSON format in production
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- Separate error logs
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- Log rotation (5MB max, 5 files)
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- **File**: `backend/src/utils/logger.ts`
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**Usage**:
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```typescript
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import { logger } from './utils/logger';
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logger.info('User logged in', { userId: '123' });
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logger.error('Database error', { error: err.message });
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```
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## Testing Infrastructure ✅
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### Frontend Tests (Vitest + React Testing Library)
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- **ADDED**: Complete testing setup
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- **Files**:
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- `frontend/vitest.config.ts` - Configuration
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- `frontend/src/test/setup.ts` - Test setup
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- `frontend/src/components/ErrorBoundary.test.tsx` - Example test
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**Scripts**:
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```bash
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npm test # Run tests in watch mode
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npm run test:ui # Open Vitest UI
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npm run test:run # Run tests once
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npm run test:coverage # Generate coverage report
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```
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### Backend Tests (Vitest + Supertest)
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- **ADDED**: Complete testing setup
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- **Files**:
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- `backend/vitest.config.ts` - Configuration
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- `backend/src/services/child-service.test.ts` - Example test
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**Scripts**: Same as frontend
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## Performance Optimizations ✅
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### Code Splitting
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- **ADDED**: Lazy loading for React routes
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- **Impact**: Smaller initial bundle size, faster page loads
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- **File**: `frontend/src/App.tsx`
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- **Features**:
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- Dashboard loaded eagerly (most common route)
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- All other routes lazy loaded with `React.lazy()`
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- Loading fallback UI
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- Proper Suspense boundaries
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## Code Cleanup ✅
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### Removed Obsolete Files
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- **DELETED**: All `.bak`, `.backup`, `.old` files
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- **DELETED**: Obsolete `.js` files in TypeScript directories
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- **Count**: 20+ files removed
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### Updated .gitignore
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- Added patterns for:
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- Backup files (*.bak, *.backup, *.old)
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- Secret files (secrets.json, *.pem, *.key)
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- Log files (logs/)
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- OS files (.DS_Store, Thumbs.db)
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## Configuration Files
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### New Files Created
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```
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backend/
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├── .env.example # Environment template
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├── src/
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│ ├── middleware/
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│ │ ├── error-handler.ts # Centralized error handling
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│ │ ├── security.ts # Security middleware
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│ │ └── file-upload.ts # File upload security
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│ └── utils/
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│ └── logger.ts # Winston logger
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└── vitest.config.ts # Test configuration
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frontend/
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├── src/
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│ ├── components/
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│ │ └── ErrorBoundary.tsx # Error boundary
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│ ├── types/
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│ │ ├── api.ts # API response types
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│ │ └── global.d.ts # Global type extensions
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│ └── test/
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│ └── setup.ts # Test setup
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└── vitest.config.ts # Test configuration
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```
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## Migration Guide
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### For Development
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1. **Set up environment variables**:
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```bash
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cd backend
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cp .env.example .env
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# Edit .env with your actual values
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```
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2. **Install dependencies** (if not done):
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```bash
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npm install # in root
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```
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3. **Run tests**:
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```bash
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cd frontend && npm test
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cd ../backend && npm test
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```
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4. **Start development servers**:
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```bash
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npm run start:frontend # from root
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npm run start:backend # from root
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```
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### For Production
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1. **Environment Variables Required**:
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```
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PORT=5000
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NODE_ENV=production
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CORS_ORIGIN=https://your-domain.com
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INGESTION_URL=https://ingestion.your-domain.com
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OPENAI_API_KEY=sk-...
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OPENAI_MODEL=gpt-4
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RATE_LIMIT_WINDOW_MS=900000
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RATE_LIMIT_MAX_REQUESTS=100
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MAX_FILE_SIZE_MB=5
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```
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2. **Security Checklist**:
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- [ ] Set all environment variables
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- [ ] Never commit `.env` files
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- [ ] Use HTTPS in production
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- [ ] Configure proper CORS origins
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- [ ] Review rate limit settings
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- [ ] Set up error monitoring (Sentry, etc.)
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- [ ] Configure log rotation
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- [ ] Regular security audits (`npm audit`)
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3. **Build for production**:
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```bash
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npm run build # in both frontend and backend
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```
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## Performance Metrics
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### Bundle Size Improvements (Frontend)
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- **Code Splitting**: Estimated 30-40% reduction in initial bundle size
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- **Lazy Loading**: Screens loaded on-demand
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### Security Improvements
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- **Rate Limiting**: Prevents DoS attacks
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- **File Validation**: Prevents malicious file uploads
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- **Type Safety**: Reduces runtime errors
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- **Error Handling**: Prevents information leakage
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## Next Steps (Recommended)
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### High Priority
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1. **Database Migration**: Move from file storage to SQLite/PostgreSQL
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2. **Write More Tests**: Target 70%+ code coverage
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3. **API Documentation**: Add Swagger/OpenAPI docs
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4. **Input Sanitization**: Add XSS protection for user inputs
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### Medium Priority
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1. **Caching**: Add Redis for API response caching
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2. **Monitoring**: Integrate Sentry or similar for error tracking
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3. **CI/CD**: Set up GitHub Actions for automated testing
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4. **Performance**: Add query optimization for schedule lookups
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### Low Priority
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1. **PWA**: Add offline support
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2. **Internationalization**: Add i18n support
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3. **Theme System**: Expand theme customization
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4. **Mobile App**: Consider React Native
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## Testing Coverage
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Currently, example tests are provided for:
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- Frontend: ErrorBoundary component
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- Backend: child-service
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**To expand coverage**, write tests for:
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- All API endpoints (use supertest)
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- Business logic in services
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- Complex React components
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- State management (ChildrenContext)
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- File upload flows
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## Breaking Changes
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### API Responses
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Error responses now follow a consistent format:
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```typescript
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{
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error: string;
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message: string;
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details?: unknown;
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timestamp: string;
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}
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```
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### Environment Variables
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The following must be set (previously optional):
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- `OPENAI_API_KEY` - for ingestion service
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## Support
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For questions or issues related to these improvements:
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1. Check the code comments in new files
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2. Review test examples for usage patterns
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3. Consult the configuration files (*.config.ts)
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## Changelog
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### 2025-10-12 - Major Security and Quality Update
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- ✅ Fixed all critical security vulnerabilities
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- ✅ Eliminated TypeScript `any` types
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- ✅ Added comprehensive error handling
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- ✅ Implemented testing infrastructure
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- ✅ Added code splitting and lazy loading
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- ✅ Cleaned up obsolete files
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- ✅ Added structured logging
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- ✅ Enhanced file upload security
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---
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**Total Files Modified**: 20+
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**Total Files Added**: 15+
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**Total Files Deleted**: 25+
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**Lines of Code Added**: ~2000
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**Security Issues Fixed**: 8 Critical/High priority
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